Users Guide
5–Adapter Preboot Configuration
Configuring Data Center Bridging
54 AH0054602-00 M
 CEE enables the legacy Converged Enhanced Ethernet (CEE) 
protocol DCBX mode on this port.
 IEEE enables the IEEE DCBX protocol on this port.
 Dynamic enables dynamic application of either the CEE or IEEE 
protocol to match the attached link partner.
3. On the Data Center Bridging (DCB) Settings page, enter the RoCE v1 
Priority as a value from 0–7. This setting indicates the DCB traffic class 
priority number used for RoCE traffic and should match the number used by 
the DCB-enabled switching network for RoCE traffic. Typically, 0 is used for 
the default lossy traffic class, 3 is used for the FCoE traffic class, and 4 is 
used for the lossless iSCSI-TLV over DCB traffic class.
Figure 5-8. System Setup: Data Center Bridging (DCB) Settings
4. Click Back.
5. When prompted, click Yes to save the changes. Changes take effect after a 
system reset.
NOTE
When DCBX is enabled, the adapter periodically sends link layer discovery 
protocol (LLDP) packets with a dedicated unicast address that serves as the 
source MAC address. This LLDP MAC address is different from the 
factory-assigned adapter Ethernet MAC address. If you examine the MAC 
address table for the switch port that is connected to the adapter, you will 
see two MAC addresses: one for LLDP packets and one for the adapter 
Ethernet interface.










